Duplex envelop



J. J. DORGAN AND M. J. SULLIVAN.

DUPLEX ENVELOP.

APPLICATION FILED OCT. so, 1918.

Fig. I. 21

.Pagngnted M4. 16, 1920.

TALQOU Class 222 was? 2/1 John Doe, John Doe' Denver. Denver' C Col.

PRINTED MATTER WITH/E8858 ZOE-L421 l L g. l i

/ LETTEj msmE II$HINVENTOR5 JOHN J. DORGA/V M/CHA EL J. SULL/ AN ATTORNEYS UNITED s'rn rns reruns: onnron.

JOHN JOSEPH DORGAN AND li/[ICHAEL JOHN SULLIVAN, 6F HGLYOKE MA$SACI-IUSETT$.

Application filed ctober 30, 1818.

To all whom it may concern:

Be it known that we, JOHN DoncAN and MrcrrsnL J. SULLIYAN, both citizens of the United States, and residents of Holyoke, in the county of I-lampden and State of Massachusetts, have invented a new and Improved Duplex Envelop, of which the following is a full, clear, and exact description. I

, Among the principal objects which the present invention has in view are: to provide an envelop of the character mentioned with compartments proportioned to the uses for which they are intended; to reduce the cost of material employed in envelope of the character mentioned; and to facilitate the handling of said envelops by the postal authorities.

Drawings.

envelop to form the completed article;

Fig. 2 is aback view of the completed article showing the envelop closed ready for mailing;

Fig. 3 is a longitudinal section on an enlarged scale, the section being taken as on the line 3-3 in Fig. 2; t

Fig. 4 is a face view of the envelop, the view being shown on a reduced scale.

Description.

Envelops of the character herein disclosed are usually employed for transportation of secondor third-class matter, the bulk of which is large as compared with the letter of advice accompanying the same. The various classes of mail matter have allotted thereto special rates of postage. In usual practice, two separate postages are employed, each requiring a separate envelop, thereby increasing the expense and also increasing the consumption of paper, which it is desired to avoid. Inherent "in the practice also, is the liability of loss of one or other of the packages, the first-class mail often being delivered and the secondand third-class mail being lost or miscarried, with the concomitant that the recipient of the first-class mail usually waits for the delivery of the lost packages, or is otherwise inconnnoded by the delay and indecision as to the cause thereof.

Specification of Letters Patent,

Patented star-.16, 192s.

Serial No. 230,309.

To avoid the above-mentioned difficulties, the present invention provides two compartments indicated in the drawings by the numerals 9 ad 10, respectively. By reference to Fig. 3 of the drawings, it. will be noted that the compartment 10 is very much smaller than the compartment 9. The compartment 10 is formed by a partition member 11, which is folded on the score line 12, over upon the back panel 13 of the duplex envelop. The partition member 11 has a gummed section 14, which is folded back upon the member 11, the fold being'on the score line 15, with which the said member is provided. As seen best in Fig. 3 of the drawings, the section 14- is adhered to the front panel 16 oi. the duplex envelop.

The panel 16 has integrally formed therewith a gunnned seam member 17, and two closure flaps bearing the indicating numerals 18 and 19, respectively. The flap 18 is designed as a closure member for the compartment 9, which holds articles, the inspectionof which is permitted, and to this end, the closure iiap 18 has an eyelet 20, which registers with a temporary fastening device 21 on the back panel 18. The flap 19 is designed as a closure member for the first-class conipartment 10, which in service is sealed, and to this end the flap is provided with gummed section 22.

When provided with a blank equipped as shown in Fig. 1 of the drawings, the parts are assembled as follows: Thescction 14 is first folded back upon the partition member 11. over on the back panel 13, the gummcd section 14 being exposed. Thc'gunnned section leis then moistened and the front panel 16 is turned upon the back panel 13, partition I member 11, and section 1d, the latter adhering to the body of said front panel. The seam member 17 is then moistened and overturned upon the adjacent edge of the back panel. 13. The envelop is then in condition for distribution to the trade.

' When the envelop is used for mailing, the sender of the mailed matter places the end or third-class matter in the compartment 9 andcloses the flap 18 upon the back panel 13, securing the said flapby means of the fastening device and the eyelet 20 cooperating therewith. The first class matter is introduced into the compartment 10 formed in part by the front panel 16 and by the partition member 11. The

The partition member 11 is then folded flap 19 is then overturned, first moistening the gunnned section 22, which is adhered to the back panel 13, thereby sealingthe compartment 10.

As seen in Fig. 4 of the drawings, the front panel 16 has allotted thereon spaces 23 and for first-class and other classes of postage. Usually the spacing line 25 is employed to subdivide the front of the envelop to receive two inscriptions, one applied to each of the panels as indicating the double use of the package, or duplex envelop.

It is oln'ious that by reason of the fact tin t the envelop has the stamps adhered in the manner indicated. when being handled by the postal authorities for cancellation, the operations are not rendered more complicated than at present.

it is also obvious that by limiting the size of the partition member 11, the compar inent 10 of the duplex envelop is sufiicient for the service of the envelop while limiting the amount of paper employed in the manufacture thereof.

Claims.

1. A duplex envelop, comprising a blank including front and rear panels which are foldable upon a longitudinal line, the front panel carrying a gunnned {la-p upon its outer longitudinal edge and foldable upon the same to engage with the corresponding longitudinal edge of the rear panel, a partition carried by one end of the rear panel and foldable transversely of same, said partition having a guinined flap at its free end which is foldable transversely of the par tition to present the gummed surface of the flap in contact with the inner surface of the front paneL said partition terminating at a point near the center of the front panel for forming therewith a relatively short pocket, the rear panel forming with the front panel and said partition a relatively long pocket extending the entire length of the envelop, a flap carried by one end of the front panel and adapted to close the outer open end of the long pocket, means for detachably securing the last named flap to the rear panel,

and a gummed flap carried by the front panel and adapted for pernanent engagement with the rear panel to close the outer end of the relatively short pocket.

2. A duplex envelop employing a blank comprising integrally formed back and front panels. said panels being connected lengthwise thereof, said front panel having an adhesively prepared edge seam, a gunnned closure flap, and a closure flap at the opposite end of said front panel adapted for temporary closure, said back panel having a partition extension provided with a gumnied edge for permanent attachment to said front panel for forming a partition between two compartments formed by said back and front panels, saidcompartments having their outer ends open and extending in opposite directions with relation to each other, said front panel being imprinted on the exposed surface thereof for receiving stamps of different denominations in positions to be readily canceled by the postal authorities and positioned with respect to the compartments with which. they belong.

3. A duplex envelop, comprising a blank including front and rear panels which are foldable upon a longitudinal line, the front panel carrying a gunnned flap upon outer longitudinal edge whicn is adapted to be secured to the corresponding longitudinal edge of the rear panel, a partition carried by one end of the rear panel and foldable transversely of the same, said partition being provided at one end with a gunnned flap to be secured to the inner surface of the front panel, said. partition forming with the front panel a pocket having its outer end open, the rear panel forming with the front panel and said partition a second pocket, a flap carried by one end of the front panel and adapted to close the open end of the second named pocket and to be secured to the rear panel, and second flap carried by the opposite end of the front panel and adapted to engage the rear panel to close the outer end of the first named pocket JOHN JOSEPH DORGAN. MICHAEL JOHN SULLIVAN. 

